Improvement in street-lamps



A. HOEN. Street-Lamp.

'No. 200,291. Pafented Feb. 12,1878.

WITNESSES ATTORNEYS.

N. PETERS, PNOTO-LITHOGRAPN ER, WAS flINGTON. D. C,

UNITED STATES PATENT OFFICE.

AUGUST HOEN, or BALTIMORE, MARYLAND.

IMPROVEMENT IN STREET-LAM PS.

Specification forming part of Letters Patent No. 200,297, dated February 12, 1878 application fil d January 21, 1878.

utilizing the rays of light that would other-- wise escape upward in an oblique direction.

In the accompanying drawing, forming part of this specification, Figure 1 is an elevation,

with one part in section, of a street-lamp provided with my improvements. Fig. 2 is a planview of one of the reflectors. V

The drawing shows the light-reflectors A attached to the reservoir B of a gasoline streetlamp, but when applied to an ordinary gas street-lamp they wil1,.of course, be attached to a suitable frame connected with the top 0 of thelamp. The number of reflectors corresponds with that of the sides of the lamp proper. Each reflector is hinged at the outer edge a of the gasoline-holder, and its inner end is supported by a screw-rod, b, which passes through a .guide, 0, at the top of the holder, and is held by a winged nut, 01. By this mode of attachment the lower or inner ends of the several reflectors may be raised or lowered to incline the latter at the same or different angles, as required, to cause them to deflect in horizontal or nearly horizontal planes, the major part or all of the rays of light radiating from the flame of the burner through the sides of the top 0 of the lamp in an upwardly oblique direction, and which would otherwise radiate into the space above the lamp and be mainly wasted.

By means of thereflectors, therefore, such rays are practically saved and utilized in casting additional light upon the objects surrounding the lamp within the field of illumination.

It is obvious that the inclination of the reflectors may be changed at will to cause the deflected rays to diverge at any desired angle, so that the general function of the reflectors may be better accommodated to the location of lampas, for instance, when the lamp is placed on an inclined surface, or near dark corners or alley-ways, it may be desirable to cast the reflected rays at a particular angle downward or upward.

I do not limit myself to any specific means for adjusting the reflectors, since various devices may be adopted in place of the hinge and screw rods.

The double-walled cylindrical smoke-tube or chimney D supports a conical cap, E, and concave or saucer-shaped fender F, which give, first, a downward and then an upward direction to the smoke or products of combustion, as indicated by arrows.

What I claim is In combination with a'street-lamp, a series of hinged reflectors, and devices for adjusting their angle of inclination, substantially as and for the purpose specified.

AUGUST HOEN.

Witnesses:

AMOS W. HART, SoLoN O. KEMoN. 

